Be Warned!
If you already have one of the upgraded NPCs in your party, you CANNOT have a 'clone' of them: NPCs are unique, and the game will only allow one of each to exist.
If you already have BOTH the NPCs from that upgrade tree, then well done, and no more!

Hey, I cant get your mod to work, as soon as i start the program, it crashes and says :
RGL error
attempt to reregister mesh corinthcrested
Please tell me if there is something i need to do other than just installing it before it will work